Suppress ET_MOUSE_MOVE when the mouse hasn't moved on Windows.

content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <tuple>
@@ skipping 4159 matching lines @@
   view_->InitAsChild(parent.get());
 
   // Simulate mouse events, ensure they are forwarded to delegate.
   ui::MouseEvent mouse_event(ui::ET_MOUSE_PRESSED, gfx::Point(), gfx::Point(),
                              ui::EventTimeForNow(), ui::EF_LEFT_MOUSE_BUTTON,
                              0);
   view_->OnMouseEvent(&mouse_event);
   EXPECT_EQ("1 0", delegate.GetMouseButtonCountsAndReset());
 
   // Simulate mouse events, ensure they are forwarded to delegate.
-  mouse_event = ui::MouseEvent(ui::ET_MOUSE_MOVED, gfx::Point(), gfx::Point(),
-                               ui::EventTimeForNow(), 0, 0);
+  mouse_event = ui::MouseEvent(ui::ET_MOUSE_MOVED, gfx::Point(1, 1),
+                               gfx::Point(), ui::EventTimeForNow(), 0, 0);
   view_->OnMouseEvent(&mouse_event);
   EXPECT_EQ("0 1 0", delegate.GetMouseMotionCountsAndReset());
 
   // Lock the mouse, simulate, and ensure they are forwarded.
   view_->LockMouse();
 
   mouse_event =
       ui::MouseEvent(ui::ET_MOUSE_PRESSED, gfx::Point(), gfx::Point(),
                      ui::EventTimeForNow(), ui::EF_LEFT_MOUSE_BUTTON, 0);
   view_->OnMouseEvent(&mouse_event);
@@ skipping 567 matching lines @@
     // There is no composition in the beginning.
     EXPECT_FALSE(has_composition_text());
     SetHasCompositionTextToTrue();
     view->ImeCancelComposition();
     // The composition must have been canceled.
     EXPECT_FALSE(has_composition_text());
   }
 }
 
 }  // namespace content